Simplicity itself, you just can't go wrong. The saw is held in place against the head by three magnets. The head can be set to 45°, 90° or 135° using the pre-set stops or at any chosen angle in between. There are two lugs on the body to locate the guide against the face edge of the timber to be cut. The body of the guide is held in one hand whilst the saw is drawn back and forth by the other; what could be easier? The saw stays perfectly aligned with no need even to mark the timber. Made in Sweden.